diff --git a/tests/unit/modules/cron_test.py b/tests/unit/modules/cron_test.py
index 017eabd..dac0122 100644
--- a/tests/unit/modules/cron_test.py
+++ b/tests/unit/modules/cron_test.py
@@ -573,10 +573,10 @@ class PsTestCase(TestCase):
     @patch('salt.modules.cron._write_cron_lines')
     @patch('salt.modules.cron.list_tab', new=MagicMock(return_value=STUB_SIMPLE_CRON_DICT))
     def test_set_special(self, write_cron_lines_mock):
-        expected_write_call = call('DUMMY_USER',
+        expected_write_call = [call('DUMMY_USER',
                                    ['5 0 * * * /tmp/no_script.sh\n',
                                     '# Lines below here are managed by Salt, do not edit\n',
-                                    '@hourly echo Hi!\n'])
+                                    '@hourly echo Hi!\n'])]
         ret = cron.set_special('DUMMY_USER', '@hourly', 'echo Hi!')
         write_cron_lines_mock.assert_has_calls(expected_write_call)